abstract background: pressure ulcers’ treatment imposes a considerable cost on health system and patients. electrical stimulation has already been introduced as an effective method for promoting wound healing. this study was conducted to determine the impact of interferential current (if) on healing of pressure ulcers (grade1 and 2). materials and methods: in this clinical trial, 23 patients (1...

This paper proposes a novel topology of multilevel current source inverter which is suitable to apply in low/medium voltage. The proposed topology is capable of producing desirable bidirectional output current levels. Furthermore, it can employ symmetrical DC current sources as well as asymmetrical ones which is a significant advantage. Asymmetrical mode makes it possible to generate a great nu...

the platform switching (pls) concept was introduced in the literature in 2005. the biological benefits and clinical effectiveness of the pls technique have been established by several studies. in this article different aspects of pls concept are discussed. crestal bone loss, biologic width, and stress distribution in this concept are comprehensively reviewed. in this article the relative publis...

resistant hypertension in adolescents is increasing in frequency and is increasingly recognized as having significant short- and long-term health consequences. it may be seen in up to 30% of all hypertensive patients cared for. adolescents with resistant hypertension are at higher cardiovascular (cv) risk due to a long history of severe hypertension complicated by other cv risk factors such as ...

it is an intensive 1-day course for introducing utilizing transcranial direct current stimulation (tdcs) in an applied format. this technique is a noninvasive brain stimulation that uses direct electrical currents over the head to stimulate specific parts of the brain which modulates neuronal activity. it has strong potentiality in the field of medical and neuroscientific research. anodal stimu...

poliomyelitis (polio) is a highly infectious viral disease, which mainly affects young children. the virus is transmitted by person-to-person spread mainly through the faecal-oral route or, less frequently, by a common vehicle (e.g. contaminated water or food) and multiplies in the intestine, from where it can invade the nervous system and can cause paralysis. initial symptoms of polio include ...

in recent years, there has been a fast growth in wind energy conversion system (wecs). there are two general types of wind turbines in wecs: fixed speed wind turbines and varying speed wind turbines.permanent magnet synchronous generator (pmsg) is one of the most attractive generators for the varying speed turbine wecs.in this paper, a fuzzy controller is proposed to control the current source ...